elasticity; resilience; flexibility; adaptability
transparency; degree of clearness
transparency; permeability
equal; equivalent; equals sign; equality sign; equals (as in "A equals B")
using as an intermediary; through
solid (body); solid matter; solid-state
pressure; stress; pressure (e.g. political); coercion; arm-twisting
vaporization; vaporisation; evaporation
gas; vapour; vapor; gaseous body
reflection; reverberation; reflex; reflexes
bending; curving; warping (of feelings, logic, etc.); distortion; refraction; inflection
isolation; cut off; blockade; quarantine; interception; deprivation
defense; defence; safeguard; protection
one direction; unidirectional; non-interactive
irradiation; radiation; beaming; exposure (to light); illumination
cover; covering; cover song; cover version; coverage; to compensate for (a loss)
globular shape; spherical shape
hole; opening; pit; hollow; burrow; den; deficit
mediation; agency; carrying (germs, diseases, etc.); transmission; mediation
spirit (e.g. human spirit); soul; spirit; ghost; ethereal being
to be extremely difficult; to present a major challenge
single; simple; sole; individual; unitary
to exceed (esp. figures: profits, unemployment rate, etc.); to surpass; to be more than; to be better than
by nature; naturally; by birth; innately; congenitally
hurdle; hurdle race; hurdles; hurdle; obstacle
once; for a short time; briefly; (arch.) one morning
to rewrite; to overwrite; to renew; to transfer
established; fixed; prearranged; predetermined
opposite; opposition; versus; vs.; to (e.g. "winning a game five to three"); equal footing
impossible; incapable (of doing); incompetence; inability; impotence; having no solution (of an equation)
invincible; unrivaled; unrivalled; matchless; unbeatable; undefeatable
definite; final; decisive; conclusive
this family; we; this house
to rise in revolt; to raise the standard of revolt
going against one's will; contrary to one's intentions; going against one's desire; going contrary to one's wishes
brow; glabella; middle forehead; area between the eyebrows